![](https://pic002.cnblogs.com/images/2012/460314/2012110719351832.png)
1 //------------C_Style-----------------
2
3 #include<stdio.h>
4
5 void main()
6 {
7 char *str = "`1234567890-=QWERTYUIOP[]\\ASDFGHJKL;'ZXCVBNM,./";
8 int c;
9 printf("Enter a string(Ctr+Z to end):\n");
10 while((c = getchar()) != EOF)
11 {
12 for(int ix = 1; str[ix] && str[ix] != c; ++ix);
13 if(str[ix])
14 putchar(str[ix-1]);
15 else
16 putchar(c);
17 }
18 }
1 //------------C++_Style-----------------
2
3 #include<iostream>
4 #include<string>
5 using namespace std;
6
7 string str = "`1234567890-=QWERTYUIOP[]\\ASDFGHJKL;'ZXCVBNM,./";
8 void main()
9 {
10 string s;
11 cout << "Enter a string(Ctr+Z to end):" << endl;
12 getline(cin, s);
13 for(string::size_type ix = 0; ix != s.size(); ++ix)
14 {
15 string::size_type index = 1;
16 for(; index != str.size() && str[index] != s[ix]; ++index);
17 if(index != str.size())
18 s[ix] = str[index-1];
19 }
20 cout << s << endl;
21 }
/*
比较以上两个代码,对于这类低级的题目C字符串风格char给适合写……
另外,对于小规模的题目,可以使用本题的常量数组,把所有可能情况都列出来,与问题相比较处理,这样更简洁……
*/